Join Date: May 2006
I cannot speak for all countries where we find the keris, I can only speak for Jawa.
Yes, protocols do exist, but I will not get involved in explanations here, it would take too long, and is too open to misunderstanding.
In a western context, common western weapons etiquette is probably good enough. If you find you have need of Javanese etiquette, I'm sure that you will be coached by somebody on the spot before you embarrass anybody.